Sorry to hear of your misfortune mate.
If you have no joy with Nissan or the warranty company then I can help you with the supply of upgraded axle kits which fix this issue permanently.
There are in stock and good to go same/next day.
viewtopic.php?f=38&t=21842
There has been a Nissan price increase lately but I will discount the numbers as heavily as I possibly can.
Alex.